A.O. Smith 402 - Manual

A.O. Smith 402

A.O. Smith 402 – Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.

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Table of Contents:

  • Page 2 – DIMENSIONS/CAPACITIES DATA; TABLE 2. DIMENSIONAL DATA
  • Page 3 – DIMENSIONS DATA FOR OUTDOOR CONFIGURATION; TABLE 3. DIMENSIONAL DATA
  • Page 4 – FOREWORD; GB MODELS-FLOW, HEAD LOSS AND TEMPERATURE RISE
  • Page 5 – and/or local codes. The boiler is polarity sensitive, correct; WARNING
  • Page 6 – CAUTION; An adjustable automatic reset limit control, that can be set; Do not operate this boiler using the internal; , the circulator is NOT provided and
  • Page 7 – INSTALLATION INSTRUCTIONS; REQUIRED ABILITY; • THE BOILER MUST NOT BE INSTALLED ON CARPETING.
  • Page 8 – Observing proper clearances will allow service to
  • Page 9 – /kW) of the total input of all appliances in the; VENTING; THE BOILER VENT COLLAR.; THIS BOILER MAY BE VENTED ACCORDING TO TABLE 10 (ALSO
  • Page 10 – HORIZONTAL VENT INSTALLATION
  • Page 11 – Figure 5. Vent Termination Installation Clearances; INTAKE /EXHAUST INSTALLATION REQUIREMENTS; SYSTEM INSTALLATION; GENERAL
  • Page 12 – VENT PRESSURE MUST BE MAINTAINED
  • Page 15 – safety and health of inhabitants.
  • Page 16 – HYDRONIC INSTALLATION; TABLE 14: INSTALLATION ITEMS
  • Page 17 – Figure 10. Single or Multiple Boiler Installation Diagram
  • Page 18 – WATER LINE CONNECTIONS
  • Page 19 – ONE GENESIS (MODEL GW) HOT WATER SUPPLY BOILER WITH HORIZONTAL TANK; DANGER; Figure 11. Single boiler with horizontal tank.
  • Page 20 – ONE GENESIS (MODEL GW) HOT WATER SUPPLY BOILER WITH VERTICAL TANK; Figure 13. Single boiler with vertical tank.
  • Page 21 – ABLE 16. Suggested Pipe Size For Multiple Gas
  • Page 22 – WIRING CONNECTIONS; Make the
  • Page 23 – GAS MANIFOLD ASSEMBLY
  • Page 26 – TIC DIAGRAM
  • Page 31 – OPERATION; FILLING AND PURGING WATER SYSTEM
  • Page 32 – Lighting Instructions for the G(B/W) 1000 through 2500 models; FOR YOUR SAFETY READ BEFORE OPERATING
  • Page 34 – CONTROL SYSTEM; CAUTION: The internal communications cables should; MANIFOLD PRESSURE; ADJUSTMENTS
  • Page 36 – cycled on and off to accept the change.
  • Page 37 – Operating Sequence
  • Page 38 – Temperature Setpoints (System Control Algorithm); FIGURE 20 A. FIGURE 20 B.; UIM OPERATING PROCEDURES
  • Page 39 – System Status Screen
  • Page 40 – Description of FCB control states:
  • Page 41 – OPERATING SETPOINT ADJUSTMENT PROCEDURE
  • Page 42 – TROUBLESHOOTING IGNITION SYSTEM; Same as above. Also try swapping FCB and UIM communications cables.
  • Page 44 – PREVENTATIVE MAINTENANCE; MAIN BURNERS
  • Page 45 – RELIEF VALVE; COMBUSTION AIR FILTER; The blower compartment should be cleaned annually to remove; VENTING MAINTENANCE; HEAT EXCHANGER PREVENTIVE MAINTENANCE
  • Page 46 – F (3°C) in the normal temperature rise through; TUBE CLEANING PROCEDURE; Note: Removal of the heat exchanger is not required.; When ordering parts
  • Page 47 – NEW BOILER LIMITED WARRANTY
Loading the manual

1

PRINTED IN U.S.A. 0906

COPPER BOILERS FOR

HYDRONIC HEATING AND

HOT WATER SUPPLY

CAUTION

TEXT PRINTED OR OUTLINED IN RED CONTAINS
I N F O R M AT I O N R E L AT I V E TO Y O U R S A F E T Y.
PLEASE READ THOROUGHLY BEFORE INSTALLING
AND USING THIS APPLIANCE.

212511-000

MC BEE, SC., RENTON, WA.,

STRATFORD-ONTARIO, VELDHOVEN-THE NETHERLANDS,

NANJING, CHINA

www.hotwater.com / email:[email protected]

PLACE THESE INSTRUCTIONS ADJACENT TO BOILER AND

NOTIFY OWNER TO KEEP FOR FUTURE REFERENCE.

•

Installation

•

Operation

•

Maintenance

•

Limited Warranty

Instruction Manual

GB/GW

MODELS

:

1000, 1300, 1500, 1850, 2100, 2500

SERIES: 400, 401, 402, 403, 404, 405

WARNING: If the information in this
manual is not followed exactly, a fire or
explosion may result causing property
damage, personal injury or loss of life.

Thank Y

ou

for buying this cost

efficient, high recovery unit from

A. O. Smith Water Products Co.

You should thoroughly read and understand this
manual before installation and/or operation of this
b o i l e r. P l e a s e pa y pa r t i c u l a r a t t e n t i o n t o t h e
important safety and operating instructions as well
as the WARNINGS and CAUTIONS.

CONTENTS

PAGE

DIMENSIONS/CAPACITIES DATA .......................... 2 - 3
FOREWORD ......................................................... 4 - 5
FEATURES/CONTROLS ..................................... 5 - 7
INSTALLATION INSTRUCTIONS ....................... 7 - 9
VENTING ........................................................... 9 - 11
SYSTEM INSTALLATION ................................ 11 - 16
HYDRONIC INSTALLATION ............................ 16 - 18
HOT WATER SUPPLY INSTALLATION ........... 18 - 31
GAS CONNECTIONS ...................................... 18 - 23
OPERATION .................................................... 31 - 34
LIGHTING AND OPERATING .......................... 32 - 33
CONTROL SYSTEM ....................................... 34 - 44
PREVENTATIVE MAINTENANCE .................. 44 - 46
TROUBLE SHOOTING .................................... 42 - 44
WIRING DIAGRAM/SCHEMATIC ................... 24 - 27
LIMITED WARRANTY ............................................. 47

•

Do not store or use gasoline or other

flammable vapors and liquids in the
vicinity of this or any other appliance.

WHAT TO DO IF YOU SMELL GAS:

•

Extinguish any open flame.

•

Do not try to light any appliance.

•

Do not touch any electrical switch; do
not use any phone in your building.

•

Immediately call your gas supplier
from a neighbor's phone. Follow the
gas supplier's instructions.

•

If you cannot reach your gas supplier,
call the fire department.

•

I n s t a l l a t i o n a n d s e r v i c e m u s t b e
performed by a qualified installer,
service agency or the gas supplier.

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Summary

Page 2 - DIMENSIONS/CAPACITIES DATA; TABLE 2. DIMENSIONAL DATA

2 DIMENSIONS/CAPACITIES DATA Figure 1. IMPORTANT! Refer to "Installation Clearances" section of manual(page 7) for recommended service clearances priorto boiler placement. TOP VIEW LEFT SIDE TABLE 2. DIMENSIONAL DATA A B C D E F M o d e l I n c h e s c m I n c h e s c m I n c h e s c m I n c...

Page 3 - DIMENSIONS DATA FOR OUTDOOR CONFIGURATION; TABLE 3. DIMENSIONAL DATA

3 DIMENSIONS DATA FOR OUTDOOR CONFIGURATION Figure 2. TABLE 3. DIMENSIONAL DATA A B C D E F G H J Model Inches cm Inches cm Inches cm Inches cm Inches cm Inches cm Inches cm Inches cm Inches cm GBO/GWO-1000 14 35.5 31.6 80.3 71.8 182.4 15.5 39.4 39.75 101 58.25 148 15.9 40.83 16 40.64 46.8 118.9 GBO...

Page 4 - FOREWORD; GB MODELS-FLOW, HEAD LOSS AND TEMPERATURE RISE

4 TABLE 5: PUMPING PERFORMANCE GUIDE TABLE 4: RECOVERY CAPACITIES TEMPERATURE RISE - DEGREES °F (°C) Input Rating Water 40°F 50°F 60°F 70°F 80°F 90°F 100°F 110°F 120°F 130°F MODEL BTU/Hr. (kW) Flow (22.2°) (27.7°) (33.3°) (38.8°) (44.4°) (50°) (55.5°) (61.1°) (66.7°) (72.2°) GW - 1000 990,000 (290.1...

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